Traction attachment



C. F. HALL. TRACTION ATTACHMENT. APPLICATION FILED SEPT. 2, 1919.

Patented 001;. 5,1920.

2 SHEETS-SHEET 1.

WWW.

C. F. HALL TRACTION ATTACHMENT. APPLICATION FILED SEPT. 2. 19:9.

Patented Oct. 5, 1920.

2 SHEETS-SHEET 2.

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PATENT OFFICE.

CLARENCE F. HALL, OF ATLANTA, GEORGIA.

TRACTION ATTACHMENT.

Specification of Letters Patent.

Patented Oct. 5, 1920.

Application filed September 2, 1919. Serial No. 321,251.

' To all whom it may concern:

'ferred form of the Be it known that I, CLARENCE F. HALL, a citizen of the United States, residing at Atlanta, in the county of Fulton and State of Georgia, have invented a new and useful Traction Attachment, of which the follow ing is a specification.

This invention relates to an attachment for automobiles. of different types and is designed as a simple and eflicient means whereby a motor vehicle can be easily and quickly extracted from mud holes and the like.

The invention is an improvement upon the structure disclosed in my co-pending application Serial Number 294,680 filed May 5th,

1919, and its primary object is to provide means whereby stretching and possible breaking of the device, due to difference in speed of rearward movement of the front and back portions of the attachment at certain times in the operation of the device,

wise improve the construction of the device,

make it lighter and less expensive than here tofore. and capable of being stowed away in a small space.

With the foregoing and other objects in view which will appear as the description proceeds, the invention consists of certain novel details of construction and combinations of parts which will be hereinafter more fully described and pointed out in the claims, it being understood that various changes may be made in the construction and arrangement of the parts without departing from the spirit or sacrificing any of the advantages of the invention as. set forth in the appended claims.

In the accompanying drawings the preshown.v

In said draw1ngs Figure 1 1s a side elevation of a motor vehicle having the device in position thereon.

invention has been engagedby the eyes.

Fig. 5 is a face View of one of the attaching yokes and the parts connected thereto.

Flg. 6 is a side elevation of the attaching leaf shown in Fig. 5 and showing its position while releasing the member engaged thereby.

Referring to the figures by characters of reference A-and B designate the rear and front sections, respectively, of the attachment. The section A is formed of a length of rope looped at intermediate points to form spaced arms 2 connected by a portion of the rope, as shown at 3, those portions of the rope forming the arms being held together by wrapping them with cord, wire, or other suitable material, indicated at 4. The free ends of the arms 2 form eyes 5 which can be provided with metal reinforcements as shown at 6. The free terminals of the length of rope are formed into eyes 7. A cross strip 8 of canvas or other strong material connects the arms2 and has term nal eyes 9 slidable on the arms. Thus this strip can be adjusted along the arms to any position desired. Similar strips 10 connect the side portions of the member A and secured to the intermediate portions of these strips 10 is a strip 11 of fabric one end of which is connected to the transverse connecting portion 3 of the'rope. The other end of the strip 11 is secured within a slot 12 formed in a yoke 13 shaped to fit transversely upon the tread portion of the tire on one of the rear wheels of a motor vehicle. Said strip 11 which forms the tread portion of the attachment is longer than the side ropes and is puckered at regulated intervals held in position by cross straps 10 and forms a gully traction, and is form fitting when applied to the wheel. Links 14: extend from the sidesof the yoke and are Any suitable means can be provided for attaching the yoke 13 to the wheel. For example a link 15 may be connected to one end of the yoke while the other end of the yoke may be provided with a chain 16 adjustably engaged by a clip 17. By threading the chain between the spokes of the wheel, placing the clip in engagement with the link 15 and tightening the clip, the parts can be securely connected.

from one of the eyes 5. The yoke 21 to which the section B is connected is provided with a chain 22, link 23 and clip 24 similar to those on the yoke 13. The connection between the member B and its yoke'is not permanent like the connection between the yoke 13 and section. A. Instead short stems 25 v are extended from the terminal eyes 26 of the member B and have inturned free ends provided with heads 27. A leaf 28 is hingedly connected to each side portion of the yoke 21 as shown at 29, the axis of movement of each leaf being obliquely disposed relative to the yoke so that, when the leaf is in holding positionagainst or close to the side of .the yoke it will be extended toward one edge of the yoke and when in releasing position and extended in the opposite direction, it;

will project toward the opposite edge of the yoke. Thesetwo positions of the leaf have been shown in Figs. 4: and 6. A s1ot 3 O-is extended obliquely into each leaffrom one edge thereof and these slots are adapted to receive the inturned ends of the stems 25, 30

' for use;

when-the device is a pplied to a wheelready Should it be desired to remove a motor vehide from a mud hole the rear section A is placed on the ground in frontof one'of the rear wheels and is connected tothe tread portion of said wheelby means of the yoke 13.

The yoke 21 is then connected to the tread ofthefront wheel at a point close to the ground and back of the point of contact be- .tween the wheel and ground. The leaves 28 a aremoved to the positions shown in Fig; A and Y the inturned ends of the stems 25 are slipped into the slots 30. Section Bis then placed around the wheel and the arms 19 are located at opposite sides of the point of contact betweenthe wheel and the ground. The two sections A and B are then connected by the hooks 20. By applying power to the rear I wheel it will move onto the section A and i jwhich will bind under the front partofthe wind, said section uponthe wheel. At the same time said section will pul-l'on section B 1 base of the front wheel and hold steady, by

' the weight of the vehicle against the ground,

enabling the rear wheelto wind. up onto said section A and raise itself out ofthe mudhole or the like,ian'd'move forward and cause it to unwind from the front wheel, thereby causing said wheel to rotate. As the yoke 21 reaches the lowest point during its rotation i for attaching one endthereof to the front and'begins to move upwardly at the back I of thehfront wheel the rear wheel will pull on the sectionsA and B fasterthan they will I v be. paid out by the front wheel. -In order to prevent the. sections. from stretching or 28 after passing under the wheel, said leaves breaking as a result of this condition, the leaves 28 have been mounted in the peculiar manner described and shown. Accordingly, during the upward movement of the leaves will swing laterally and rearwardly, as shown in Fig.- 6, thereby compensating for the difference in movement at the front and rear ends of the attachment and at the same time allowing the stems to slide freely from the slots and thereby disengage the section B from the front wheel. If, when applying the attachment to the wheels it is found that it is necessary to travel farther than one revolution of the wheels, a third section (not shown and which issimilar to section B, can

be joined on to section B, by hook 20 at the point where section A is to be connected underordinary conditions. The third section thenis to be-wound around the front wheel over the top of section B in .thesame'manner, and connected to section A as section B would have been connected under ordinary conditions, thereby forming an intermediate section which extends the length of the attachment and allows a longer travel thereon.

' lVhat is. claimed is I.

'1.-A device, of the classdescribed including detachably connected front and rear sec tions, means for securingthe rearsection to the rearwheel .of a motor vehicle, obliquely mounted hinged members, means for connectlngthem to the front wheelof said vehole, and means fordetachably connectlng the front section to said members. Y 2. A device of the class described including detachably connected front and rear sections, means for securingthe rear section to the rear wheel of a motor vehicle, and a connecting structure for attaching the front section to the front wheel of said vehicle, said structure including movable means for comfpensating for the difierence in rearward the rear wheel of a motor vehicle, a yoke, means for detachably connecting the yoke to the front wheel of said vehicle, obliquely dis posed leaves hingedly connected to the side portions of said yoke and having inclined slots therein, and means on the front section of the device for engagement with the slotted leaves to detachably connect the yoke and front section.

4. A device of the class described including a front wheel engaging section, means wheel, a section for attachment to the rear wheel, means for connecting the sections adjacent the base of the front wheel, each section including a length of. rope looped to form spaced arms at one end connected by an intermediate portion of the rope, cross strips connecting the side portions of each section, and a longitudinally extending strip spaced from the side portions of the rope and secured to said cross strips, and to said intermediate portion.

In testimony that I claim the foregoing as my own, I have hereto affixed my signature in the presence of tWo Witnesses.

CLARENCE F. HALL.

Witnesses:

M. L. CovINe'roN, H. S. OAUSEY. 

